结晶

The results show that some twin crystals and honeycomb structures appear in the shear plane and many kinds of deformation mechanism exist such as extruding, kinking and so on. When annealed at 550 ℃ for 2 h, the recrystal gains are observed in the shear plane. Especially the side receives the cut of guillotine, the size of recrystal grain is very thin, corresponding with the recrystal grains obtained by cold rolling at 80% deformation rate.

结果表明：经剪切变形后，切面处形成一种独特的带状变形孪晶和蜂窝状变形组织，且存在挤压、扭折等多种变形机制的作用；合金在550 ℃退火2 h后，切面出现许多再结晶晶粒，且在承受剪床切口的一边再结晶晶粒非常细小，相当于冷轧变形80%后的再结晶晶粒尺寸。

Crystallite grows up when being annealed. With increase of Sn2+ concentration and use of ITO substrate this trend along(101) become obvious. Besides, crystallization of sample produced by SnCl2 solution of 0.1mol/l is better than that by SnCl2 solution of 0.2mol/l and glass substrate is more propitious to crystallization of SnS films than ITO substrate.

Sn2+浓度的增加以及ITO衬底明显有利于晶粒沿(101)晶面结晶。0.1mol/l的SnCl2溶液制备出的样品较0.2mol/l的SnCl2溶液制备出的样品结晶性更好，玻璃衬底较ITO衬底更有利于SnS的结晶。

A systematic study on the crystallization process of ammonium sulphate has been performed in this thesis. Computational Fluid Dynamics simulations and optimization of the crystallizers have been carried out in conjunction with multi-phase model.

本文对硫酸铵结晶工艺进行了系统的研究，并在此基础上，运用计算流体力学方法，对硫酸铵结晶器进行了模拟和优化，并对硫酸铵结晶过程进行了多相模拟。

Experience shows that the introduced magnetic field can give an effective intervention to the transition of droplet, flowing of molten bath metal, crystalline and nucleation of molten bath and the process of crystalline growth. The magnetic field promotes the refining degree of primary crystallization structure , decreases the chemistry non-homogeneity, So it can strengthen hardness and wearing resistance of weld metal overlay and improve quality of surfacing deposit.

实践表明，利用外加磁场对焊接中熔滴的过渡、熔池金属的流动、熔池的结晶形核及结晶生长等过程有显著作用，使堆焊层的一次结晶组织细化，控制硬质相的分布，减小化学不均匀性，从而提高了堆焊层金属的硬度和耐磨性，全面改善堆焊层的性能。

In order to understand the amount of the argon gas entered the mold and the distribution of argon gas in the mold when blowing argon gas through stopper or upper nozzle, the water model with 1∶1 scale was built to investigate the effects of casting speed, argon flow rate, the manner of blowing argon, nozzle port angle and other parameters on the argon gas distribution in the different wide slab casting mold.

针对塞棒、上水口吹氩时，吹入的氩气有多少进入到结晶器钢水内和氩气在结晶器断面上如何分布的问题，采用1：1水模型，重点研究了吹气量、吹气方式、拉速、浸入式水口倾角等工艺参数对不同宽度结晶器内气体分布状况的影响。

For example, the interaction between substrate and block copolymer is determined by surface free energy of the substrate, crystallization is dependent on crystallization temperature and annealing temperature, and microphase segregation strength varies with chain length of the block copolymer.

基体和嵌段共聚物之间作用力可通过基体表面自由能调控，可结晶链段的结晶可通过结晶条件调控，相分离强度可通过嵌段共聚物链长控制。

If conditions allow, it is better to use calcium carbonate. Using calcium carbonate as seed crystal, adjusting pH values of solution by alkali, the process of the crystallization of calcium ion in reverse osmosis water under different pH values, seeds and their dosage, also different mixing speeds was examined.

用碳酸钙做晶种，通过加碱调节溶液pH值，考察了不同pH、不同晶种及其投加量、不同搅拌速度下钙离子的结晶过程，确定了pH值是影响钙离子结晶的主要因素，而搅拌速度、晶种及其投加量在一定程度上亦对钙离子结晶有影响。

The interaction between polyethylene glycols and unsaturated polyester reduces the crystallization the PEG component, which is related to the molecular weight and content of the PEG in the system.

发现二者良好的相容性限制了聚乙二醇的结晶倾向。共混体系中聚乙二醇的结晶程度与其分子量和含量有关，分子量或含量越大，则结晶倾向越大。

All ionomers had higher rate of nucleation, characterized by the higher values of Si, overall rate of crystallization, characterized by the higher values of (Tmax-T0), and narrower crystallite size distribution, characterized by the lower values of Δw, than those of pure PP and PP-g-MAH.

对于全部样品在所有的冷却速率下，Avrami指数n值均在2.5-2.8之间，说明聚丙烯结晶行为没有改变；但同时发现接枝及离子化后，成核速率加快，晶粒分布变窄，结晶总速率增大，与等温结晶动力学得到的结论一致。

This has an important meaning to the industrial manufacture.DSC, WAXD and polarizing microscope with hot stage experiments were performed to describe what led the SSP rate acceleration of PET/MMT. It was shown that montmorillonite acted as a very good nucleating agent in PET crystallization process, which results in the lower crystallinity, more small microlites, and more surfaces of microlites.

为研究PET／MMT固相缩聚效率提高的原因，通过热台偏光显微镜、DSC、X-射线衍射等手段对样品的结晶进行观察与分析研究，结果表明蒙脱土对PET的结晶有明显的成核作用，使其晶核生成速率迅速提高，晶核数量明显增多，从而使整个结晶过程的时间变短，同时形成了更多结构不完善的微晶体。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。